[Bug tree-optimization/38359] [4.3/4.4 regression] ICE in set_lattice_value, at tree-ssa-ccp.c:466

[rguenth at gcc dot gnu dot org]

------- Comment #4 from rguenth at gcc dot gnu dot org  2008-12-02 12:21 -------
Minimal testcase:

unsigned _ov_64_seek_lap (_Bool x1, _Bool x2, _Bool x3)
{
  unsigned ltmp_3978_7__PHI_TEMPORARY;
  unsigned ltmp_4011_7__PHI_TEMPORARY;
  signed ltmp_4011_7;

  if (!x1 || !x2)
    while (1) ;

  if (x3)
    ltmp_3978_7__PHI_TEMPORARY = 0xffffff7e;
  else
    ltmp_3978_7__PHI_TEMPORARY = 1;

  ltmp_4011_7 = -1;
  return ltmp_4011_7 >> ltmp_3978_7__PHI_TEMPORARY;
}


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38359

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